LXR linux/drivers/cpufreq/Kconfig.arm

   1#
   2# ARM CPU Frequency scaling drivers
   3#
   4
   5# big LITTLE core layer and glue drivers
   6config ARM_BIG_LITTLE_CPUFREQ
   7        tristate "Generic ARM big LITTLE CPUfreq driver"
   8        depends on (ARM_CPU_TOPOLOGY || ARM64) && HAVE_CLK
   9        # if CPU_THERMAL is on and THERMAL=m, ARM_BIT_LITTLE_CPUFREQ cannot be =y
  10        depends on !CPU_THERMAL || THERMAL
  11        select PM_OPP
  12        help
  13          This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
  14
  15config ARM_BRCMSTB_AVS_CPUFREQ
  16        tristate "Broadcom STB AVS CPUfreq driver"
  17        depends on ARCH_BRCMSTB || COMPILE_TEST
  18        default y
  19        help
  20          Some Broadcom STB SoCs use a co-processor running proprietary firmware
  21          ("AVS") to handle voltage and frequency scaling. This driver provides
  22          a standard CPUfreq interface to to the firmware.
  23
  24          Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.
  25
  26config ARM_BRCMSTB_AVS_CPUFREQ_DEBUG
  27        bool "Broadcom STB AVS CPUfreq driver sysfs debug capability"
  28        depends on ARM_BRCMSTB_AVS_CPUFREQ
  29        help
  30          Enabling this option turns on debug support via sysfs under
  31          /sys/kernel/debug/brcmstb-avs-cpufreq. It is possible to read all and
  32          write some AVS mailbox registers through sysfs entries.
  33
  34          If in doubt, say N.
  35
  36config ARM_DT_BL_CPUFREQ
  37        tristate "Generic probing via DT for ARM big LITTLE CPUfreq driver"
  38        depends on ARM_BIG_LITTLE_CPUFREQ && OF
  39        help
  40          This enables probing via DT for Generic CPUfreq driver for ARM
  41          big.LITTLE platform. This gets frequency tables from DT.
  42
  43config ARM_VEXPRESS_SPC_CPUFREQ
  44        tristate "Versatile Express SPC based CPUfreq driver"
  45        depends on ARM_BIG_LITTLE_CPUFREQ && ARCH_VEXPRESS_SPC
  46        help
  47          This add the CPUfreq driver support for Versatile Express
  48          big.LITTLE platforms using SPC for power management.
  49
  50config ARM_EXYNOS5440_CPUFREQ
  51        tristate "SAMSUNG EXYNOS5440"
  52        depends on SOC_EXYNOS5440
  53        depends on HAVE_CLK && OF
  54        select PM_OPP
  55        default y
  56        help
  57          This adds the CPUFreq driver for Samsung EXYNOS5440
  58          SoC. The nature of exynos5440 clock controller is
  59          different than previous exynos controllers so not using
  60          the common exynos framework.
  61
  62          If in doubt, say N.
  63
  64config ARM_HIGHBANK_CPUFREQ
  65        tristate "Calxeda Highbank-based"
  66        depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR
  67        default m
  68        help
  69          This adds the CPUFreq driver for Calxeda Highbank SoC
  70          based boards.
  71
  72          If in doubt, say N.
  73
  74config ARM_IMX6Q_CPUFREQ
  75        tristate "Freescale i.MX6 cpufreq support"
  76        depends on ARCH_MXC
  77        depends on REGULATOR_ANATOP
  78        select PM_OPP
  79        help
  80          This adds cpufreq driver support for Freescale i.MX6 series SoCs.
  81
  82          If in doubt, say N.
  83
  84config ARM_KIRKWOOD_CPUFREQ
  85        def_bool MACH_KIRKWOOD
  86        help
  87          This adds the CPUFreq driver for Marvell Kirkwood
  88          SoCs.
  89
  90config ARM_MEDIATEK_CPUFREQ
  91        tristate "CPU Frequency scaling support for MediaTek SoCs"
  92        depends on ARCH_MEDIATEK && REGULATOR
  93        depends on !CPU_THERMAL || THERMAL
  94        select PM_OPP
  95        help
  96          This adds the CPUFreq driver support for MediaTek SoCs.
  97
  98config ARM_OMAP2PLUS_CPUFREQ
  99        bool "TI OMAP2+"
 100        depends on ARCH_OMAP2PLUS
 101        default ARCH_OMAP2PLUS
 102
 103config ARM_S3C_CPUFREQ
 104        bool
 105        help
 106          Internal configuration node for common cpufreq on Samsung SoC
 107
 108config ARM_S3C24XX_CPUFREQ
 109        bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
 110        depends on ARCH_S3C24XX
 111        select ARM_S3C_CPUFREQ
 112        help
 113          This enables the CPUfreq driver for the Samsung S3C24XX family
 114          of CPUs.
 115
 116          For details, take a look at <file:Documentation/cpu-freq>.
 117
 118          If in doubt, say N.
 119
 120config ARM_S3C24XX_CPUFREQ_DEBUG
 121        bool "Debug CPUfreq Samsung driver core"
 122        depends on ARM_S3C24XX_CPUFREQ
 123        help
 124          Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
 125
 126config ARM_S3C24XX_CPUFREQ_IODEBUG
 127        bool "Debug CPUfreq Samsung driver IO timing"
 128        depends on ARM_S3C24XX_CPUFREQ
 129        help
 130          Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
 131
 132config ARM_S3C24XX_CPUFREQ_DEBUGFS
 133        bool "Export debugfs for CPUFreq"
 134        depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
 135        help
 136          Export status information via debugfs.
 137
 138config ARM_S3C2410_CPUFREQ
 139        bool
 140        depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
 141        select S3C2410_CPUFREQ_UTILS
 142        help
 143          CPU Frequency scaling support for S3C2410
 144
 145config ARM_S3C2412_CPUFREQ
 146        bool
 147        depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
 148        default y
 149        select S3C2412_IOTIMING
 150        help
 151          CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
 152
 153config ARM_S3C2416_CPUFREQ
 154        bool "S3C2416 CPU Frequency scaling support"
 155        depends on CPU_S3C2416
 156        help
 157          This adds the CPUFreq driver for the Samsung S3C2416 and
 158          S3C2450 SoC. The S3C2416 supports changing the rate of the
 159          armdiv clock source and also entering a so called dynamic
 160          voltage scaling mode in which it is possible to reduce the
 161          core voltage of the CPU.
 162
 163          If in doubt, say N.
 164
 165config ARM_S3C2416_CPUFREQ_VCORESCALE
 166        bool "Allow voltage scaling for S3C2416 arm core"
 167        depends on ARM_S3C2416_CPUFREQ && REGULATOR
 168        help
 169          Enable CPU voltage scaling when entering the dvs mode.
 170          It uses information gathered through existing hardware and
 171          tests but not documented in any datasheet.
 172
 173          If in doubt, say N.
 174
 175config ARM_S3C2440_CPUFREQ
 176        bool "S3C2440/S3C2442 CPU Frequency scaling support"
 177        depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442)
 178        select S3C2410_CPUFREQ_UTILS
 179        default y
 180        help
 181          CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
 182
 183config ARM_S3C64XX_CPUFREQ
 184        bool "Samsung S3C64XX"
 185        depends on CPU_S3C6410
 186        default y
 187        help
 188          This adds the CPUFreq driver for Samsung S3C6410 SoC.
 189
 190          If in doubt, say N.
 191
 192config ARM_S5PV210_CPUFREQ
 193        bool "Samsung S5PV210 and S5PC110"
 194        depends on CPU_S5PV210
 195        default y
 196        help
 197          This adds the CPUFreq driver for Samsung S5PV210 and
 198          S5PC110 SoCs.
 199
 200          If in doubt, say N.
 201
 202config ARM_SA1100_CPUFREQ
 203        bool
 204
 205config ARM_SA1110_CPUFREQ
 206        bool
 207
 208config ARM_SCPI_CPUFREQ
 209        tristate "SCPI based CPUfreq driver"
 210        depends on ARM_BIG_LITTLE_CPUFREQ && ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
 211        help
 212          This adds the CPUfreq driver support for ARM big.LITTLE platforms
 213          using SCPI protocol for CPU power management.
 214
 215          This driver uses SCPI Message Protocol driver to interact with the
 216          firmware providing the CPU DVFS functionality.
 217
 218config ARM_SPEAR_CPUFREQ
 219        bool "SPEAr CPUFreq support"
 220        depends on PLAT_SPEAR
 221        default y
 222        help
 223          This adds the CPUFreq driver support for SPEAr SOCs.
 224
 225config ARM_STI_CPUFREQ
 226        tristate "STi CPUFreq support"
 227        depends on SOC_STIH407
 228        help
 229          This driver uses the generic OPP framework to match the running
 230          platform with a predefined set of suitable values.  If not provided
 231          we will fall-back so safe-values contained in Device Tree.  Enable
 232          this config option if you wish to add CPUFreq support for STi based
 233          SoCs.
 234
 235config ARM_TANGO_CPUFREQ
 236        bool
 237        depends on CPUFREQ_DT && ARCH_TANGO
 238        default y
 239
 240config ARM_TEGRA20_CPUFREQ
 241        bool "Tegra20 CPUFreq support"
 242        depends on ARCH_TEGRA
 243        default y
 244        help
 245          This adds the CPUFreq driver support for Tegra20 SOCs.
 246
 247config ARM_TEGRA124_CPUFREQ
 248        tristate "Tegra124 CPUFreq support"
 249        depends on ARCH_TEGRA && CPUFREQ_DT && REGULATOR
 250        default y
 251        help
 252          This adds the CPUFreq driver support for Tegra124 SOCs.
 253
 254config ARM_TEGRA186_CPUFREQ
 255        tristate "Tegra186 CPUFreq support"
 256        depends on ARCH_TEGRA && TEGRA_BPMP
 257        help
 258          This adds the CPUFreq driver support for Tegra186 SOCs.
 259
 260config ARM_TI_CPUFREQ
 261        bool "Texas Instruments CPUFreq support"
 262        depends on ARCH_OMAP2PLUS
 263        help
 264          This driver enables valid OPPs on the running platform based on
 265          values contained within the SoC in use. Enable this in order to
 266          use the cpufreq-dt driver on all Texas Instruments platforms that
 267          provide dt based operating-points-v2 tables with opp-supported-hw
 268          data provided. Required for cpufreq support on AM335x, AM437x,
 269          DRA7x, and AM57x platforms.
 270
 271config ARM_PXA2xx_CPUFREQ
 272        tristate "Intel PXA2xx CPUfreq driver"
 273        depends on PXA27x || PXA25x
 274        help
 275          This add the CPUFreq driver support for Intel PXA2xx SOCs.
 276
 277          If in doubt, say N.
 278
 279config ACPI_CPPC_CPUFREQ
 280        tristate "CPUFreq driver based on the ACPI CPPC spec"
 281        depends on ACPI_PROCESSOR
 282        select ACPI_CPPC_LIB
 283        default n
 284        help
 285          This adds a CPUFreq driver which uses CPPC methods
 286          as described in the ACPIv5.1 spec. CPPC stands for
 287          Collaborative Processor Performance Controls. It
 288          is based on an abstract continuous scale of CPU
 289          performance values which allows the remote power
 290          processor to flexibly optimize for power and
 291          performance. CPPC relies on power management firmware
 292          support for its operation.
 293
 294          If in doubt, say N.
 295